In an op-ed for the New York Times published Oct. 19, the actress, 34, claims that the producer told her "not to be so naive" and that she needed to be "willing to do this sort of thing" when she declined to go to his private room during a dinner meeting.

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Harvey Weinstein picking with the award for International Film of the Year for Lion at the Evening Standard Film Awards at Claridge's, Brook Street, London.

Nyong'o says she first met Weinstein at an awards ceremony in Berlin in 2011, when she was still a student at the Yale School of Drama. Another producer — a woman — warned Nyong'o that Weinstein "can be a bully."

In another encounter, Nyong'o says Weinstein invited her to lunch and tried to force her to drink alcohol despite her protestations. Later that day, at a private film screening at his house, Nyong'o claims Weinstein invited her to his bedroom and tried to give her a massage.

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Lupita Nyong'o.

She explains: "I panicked a little and thought quickly to offer to give him one instead: It would allow me to be in control physically, to know exactly where his hands were at all times."

Nyong'o alleges that when Weinstein tried to take off his pants, she left the room.

Let's cut to the chase. I have a private room upstairs where we can have the rest of our meal.

After a few more professional encounters where Nyong'o felt more confident that she'd "established boundaries," she says she accepted a dinner invitation with Weinstein.

"Let's cut to the chase. I have a private room upstairs where we can have the rest of our meal," she claims he said to her.

Weinstein then allegedly called her "naive" and told her that she had to be "willing to do this sort of thing" if she wanted to be an actress. When she refused to go upstairs with him, Nyong'o says they parted ways.

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Lupita Nyong'o holds her Oscar for Best Supporting Actress for her role in "12 Years a Slave" at the 86th Academy Awards in Hollywood, California March 2, 2014.

In 2013, at a screening for "12 Years A Slave," Weinstein allegedly apologized to Nyong'o and promised to respect her going forward.

"I said thank you and left it at that. But I made a quiet promise to myself to never ever work with Harvey Weinstein," she writes.

No allegations against Weinstein have been proven in court. Through a spokesperson, he has denied any allegations of non-consensual contact.